What two numbers have a GCF of 545?

Here we will explain and show you how to find what two numbers have the Greatest Common Factor (GCF) of 545.

There is actually an infinite number of answers to this question. First, note that both the numbers we are looking for must be multiples of 545. Below is the beginning list of multiples of 545 (1 through 7) in numerical order.

1. 545
2. 1090
3. 1635
4. 2180
5. 2725
6. 3270
7. 3815
etc...

Two numbers that have a GCF of 545 can be 545 and any other number on the list above. Thus, two numbers that have a GCF of 545 are:

545 & 1090
545 & 1635
545 & 2180
etc...

That is not all! Any combination of any multiple of 545 and "odd" multiples of 545 will also have GCF of 545. We numbered the multiples above so it would be easy to identify the "odd" multiples (number 1, 3, 5, 7, etc). Thus, here are some more examples of two numbers that also have a GCF of 545.

1090 & 1635
1090 & 2725
2180 & 2725
2180 & 3815
etc...

Like we stated above, there are infinite combinations of two numbers whose GCF is 545. The lists we created can go on forever.

Two numbers have a GCF of Calculator
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Teacher Tip: If you are a teacher, you could ask these questions of your students: "I am thinking of two numbers and the GCF is 545, what are the numbers?" or "What are two numbers whose GCF is 545?"

What two numbers have a GCF of 546?
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